Vol. XXVI, pp. 73-74 March 22, 1913 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW PTEROPINE BAT FROM LUZON. 



BY GERRIT S. MILLER, JR. 



[By permission of the Secretary of the Smithsonian Institution.] 



Among some bats collected by Dr. Paul Bartsch in a cave at 

 Montalban, Luzon, Philippine Islands, on July 5, 1908, is an 

 adult male of a species of Eonycteris, a genus not hitherto 

 recorded from the archipelago.* The animal is quite distinct 

 from Eonycteris spelssa as represented in the National Museum 

 by specimens from the Malay Peninsula, and from the Bornean 

 E. major as described by Andersen. It may be known as: 



Eonycteris robusta sp. nov. 



Type.— Adult male (in alcohol), No. 175849, U. S. National Museum. 



Diagnosis.— Size above the maximum for males of Eonycteris spelsea, 

 but somewhat less than in the female (male not known) of E. major; 

 color as in E. spelsea; skull as in the related species, but with conspicu- 

 ously deepened mandibular ramus (depth at posterior margin of m 3 4.2 

 instead of 3.2) ; teeth differing from those of both E. spe.lpea and E. major 

 in the reduced, distinctly narrowed condition of crowns, a character 

 especially noticeable in m 1 , pm 4 , and m^ 



Measurements.— Head and body, 125; tail, 22; tibia, 38.6 (32, 33); t 

 foot, 20 (20, 10.5); forearm, 78 (73, 79.5); thumb, 25.4 (24, 24); second 

 digit, metacarpal, 33 (33, 33.5); third digit, metacarpal, 52 (48.5, 54); 

 first phalanx, 35 (33, 34.5); second phalanx, 46 (43, 45); fourth digit, 

 metacarpal, 52 (47,47.5); first phalanx, 27 (27.5, 28.5); second phalanx, 

 30 (25.5, — ); fifth digit, metacarpal, 49 (43.5, 51.5); first phalanx, 24 

 (21.5, 23.5); second phalanx, 22.6 (19.5, 24); ear, 19 (19, — ); width of 

 ear, 14 (13, — ); condylobasal length of skull, 35.2 (35.5, 36.8); breadth 

 of braincase, 14.9 (15.2, 16.2); zygomatic breadth, 22.2 (22.8, — ); rostral 



* See Hollister's list of mammals of the Philippine Islands (Philippine Journ. Sci., 

 vol. 7, sect. D, No. 1. February, 1912) and Andersen's Catalogue of the Chiroptera in the 

 British Museum, 2nd ed., vol. 1, p. 732. March 23, 1912. 



t Of tin- measurements in parenthesis the first is the maximum of 8 males of E. spelsea, 

 the second that of the type (female) of E. major, both as recorded by Andersen. 



17— Proc. Biol. Soc. Wash., Vol. XXVI, 1913. 



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